Extinction of Animals
- An animals which no longer exist is called extinct animal.
- Extinction happens when all animals of that species dies.
- Example of animals that are extinct : dinosaur, dodo bird, and mammoth.
![](https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRbzqaLRQa3Rq_ACFeyHHrWe5gNq5BciirlQMZ9sCRBJEOtO4Ay) |
Mammoth |
![](http://static.ddmcdn.com/gif/how-to-draw-dinosaurs-133.jpg) |
Dinosaur |
Dinosaur and mammoth become extinct because of the change of climate on the earth
![](https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQulNWtGhlWSbhLhTTtwKvdpnVodsVOC3snTZfkuOGJGfo4ZB2c) |
Dodo Bird |
The dodo bird is no longer exist because of the human activities such as excessive hunting and destruction of habitats.
Endangered species
![](https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcTN08iq0HaGgUE05a5NM4zZkjoYwkgxEBhZXKxs89x82Q4Su34P) |
Illegal hunting |
- many animals die without the chance to breed and reproduce.
- Examples: Hunters kill tiger for skins while elephant for tusks.
![](https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTKIsPXhBaY2b7zgsh-lSQARpOdOS_IwhQTqMwXiglRnoGZVa3_) |
Tiger skin |
![](https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcR2nXMjwRIfINqXBrg8dD8hmvQ1dEMfP6goLuvL1yVYW_VvQk1Hrw) |
Elephant trusks |
4. Excessive development
- People clear forest for housing and and more land as development.
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